the subject matter that will be tackled is air pollution. Aside from the fact that deforestation is the reason for continuous air pollution, other major contributors are smoke emitting from the industries and factories, automobiles, smoking cigarette and other tobacco based products, etc. The absence of trees in the forest is something that is widely neglected or a little bit underrated but even if people wanted to plant millions of trees they will still be faced by their own problem of urban revolution
Certain scientist and medical authorities have claimed for many years that the use of tobacco contributes to cancer development in susceptible people. Just enough evidence has been presented to justify the possibility of such a presumption (Parmele, 1946).